Multipole Born series approach to light scattering by Mie-resonant nanoparticle structures

verfasst von

Nikita A. Ustimenko, Danil F. Kornovan, Kseniia V. Baryshnikova, Andrey B. Evlyukhin, Mihail I. Petrov

Abstract

Optical response of Mie-resonant nanoparticles can be modeled either by full-wave numerical simulations or by the widely used analytical coupled multipole method (CMM). However, an analytical solution in the framework of CMM can be obtained only in a limited number of cases. In this paper, a modification of the CMM in the framework of the Born series and its applicability for the simulation of light scattering by finite nanosphere structures, maintaining both dipole and quadrupole resonances, are investigated. The Born approximation simplifies an analytical analysis of various systems and helps shed light on physical processes ongoing in that systems. Using Mie theory and Green's functions approach, we analytically formulate the rigorous coupled dipole-quadrupole equations and their solution in the different-order Born approximations. We analyze in detail the resonant scattering by dielectric nanosphere structures such as dimer and ring to obtain the convergence conditions of the Born series and investigate the influence of the physical characteristics such as absorption in particles, type of multipole resonance, and geometry of ensemble on the convergence of Born series and its accuracy.

Organisationseinheit(en)

Institut für Quantenoptik
PhoenixD: Simulation, Fabrikation und Anwendung optischer Systeme

Externe Organisation(en)

St. Petersburg National Research University of Information Technologies, Mechanics and Optics (ITMO)

Typ

Artikel

Journal

Journal of Optics (United Kingdom)

Band

24

Anzahl der Seiten

11

ISSN

2040-8978

Publikationsdatum

03.2022

Publikationsstatus

Veröffentlicht

Peer-reviewed

Ja

ASJC Scopus Sachgebiete

Elektronische, optische und magnetische Materialien, Atom- und Molekularphysik sowie Optik

Elektronische Version(en)

https://doi.org/10.48550/arXiv.2108.11920 (Zugang: Offen)
https://doi.org/10.1088/2040-8986/ac4a21 (Zugang: Geschlossen)